KR100625646B1 - Fiber reinforced composites clamping plate for rubber dam and method for fabrication - Google Patents

Abstract

The present invention relates to a fiber-reinforced composite clamping plate for rubber dams having light weight, corrosion resistance, high strength, and high durability.

According to the present invention, both ends of the rubber beams are laminated on the concrete structure of the concrete, and the long side compression projections having a constant width and thickness thereon and are symmetrically vertically downward with respect to the axis on the bottom surface, and the axis on both sides of the upper surface. In the rubber dam is fixed by the fastening of the anchor bolt and the nut by stacking the clamping plate formed in the longitudinal direction of the vertical reinforcement symmetrical vertically upward relative to the reference;

The clamping plate is laminated with a predetermined thickness of each of the fiber-reinforced composite materials of which their members are arranged and woven in the longitudinal, transverse and oblique directions, respectively, impregnated with a resin, and the composite laminate plate impregnated with the resin. It is symmetrical to the clamping plate and passed through the molding die of the hollow cross-sectional shape is heat is characterized in that it was cut by size after rapid curing.

Accordingly, the clamping plate made of fiber-reinforced composite material is suitable for various high corrosion environments such as river and river water treatment structures, ensuring long-term structural safety and increasing load capacity, and convenient transportation and construction due to light weight. There is an advantage provided.

Description

FIBER REINFORCED COMPOSITES CLAMPING PLATE FOR RUBBER DAM AND METHOD FOR FABRICATION}

1 is a partial cutaway perspective view showing a state in which the rubber beam is fixed to the bed concrete by the rubber dam clamping plate according to the prior art,

2 to 5 is a configuration diagram showing an embodiment provided in the description of the fiber-reinforced composite material clamping plate for rubber dams according to the present invention,

Figure 2 is a perspective view showing the upper portion of the fiber-reinforced composite material clamping plate for rubber dams according to the present invention,

3 is a perspective view showing a lower portion of the fiber-reinforced composite material clamping plate for the rubber dam of FIG.

4 is an enlarged cross-sectional view of the composite laminate in the fiber-reinforced composite clamping plate of FIG.

5 is an explanatory view showing a lamination of the composite laminate of the fiber-reinforced composite clamping plate of Figure 4,

Figure 6 is a cross-sectional view showing another embodiment of the fiber-reinforced composite material clamping plate for rubber dams of the present invention.

<Description of the symbols for the main parts of the drawings>

100: composite clamping plate 110: composite laminate

111, 112: long side compression protrusion 113, 114: vertical reinforcement

115: through hole 120: fiber mat

130: glass fiber fabric 140: roving yarn

The present invention relates to, for example, a clamping plate used for fixing a rubber dam or a movable beam in a river or river width direction, and more particularly, a rubber dam fixing clamping plate made of a conventional steel (STEEL) material. By replacing the fiber reinforced composite material with excellent corrosion resistance, high strength and high durability, it is convenient to install the rubber dam or the movable beam in the direction of river or river width. The present invention relates to a fiber-reinforced composite clamping plate for rubber dams and a method of manufacturing the same.

In general, a steel self-conducting fence has been well known as a level control fence of a seawater dam (DAM) in a river, a river or an estuary. However, such a steel fence is operated by a hydraulic cylinder or the like, maintenance operation is very difficult and it is impossible to install on a weak foundation.

Recently, a so-called prefabricated rubber dam or a movable control dam, which is operated by a direct supply of a fluid such as air, water, and made of rubber tubes for easy installation or maintenance, has been developed and put into practical use. These rubber dams or movable beams can be easily secured and assembled and installed even in mountainous areas or where terrain conditions are poor, and the height of the rubber tube (rubber beams) can be increased depending on the water level. It is receiving great attention as an embankment fence because it is managed by supply control of the.

Most of these rubber dams or movable beams are filled with air for the expansion and standing of the rubber beams, and supply or discharge clamping plates and air for fixing the rubber beams to river concrete and banks in river or river width directions. It consists of plumbing equipment for the purpose.

In the case of the above-mentioned rubber dam or movable beam, the clamping plate is fixed to the riverbed concrete across the river or river. For example, a conventional rubber dam clamping plate for fixing the rubber dam or the movable beam to the riverbed concrete is illustrated in FIG. Same as 1.

1 is a partial cutaway perspective view showing a state in which the rubber beam is fixed to the bed concrete by the rubber dam clamping plate according to the prior art.

In the conventional rubber dam clamping plate, as shown in FIG. 1, an air pipe for supplying and discharging air, not shown in the drawing, is installed at the bottom of the bottom concrete 60 through the dam slope to stand up and roll over the rubber beam 10. do.

The air pipes embedded in the bed concrete 60 along the width direction communicate with the rubber beam 10 installed on the bottom surface of the bed concrete 60.

The rubber beam 10 is made of elastic rubber and is made of a general rubber plate body to have sufficient tension by putting a reinforcing nylon cord therein.

In order to fix such a rubber beam 10, as shown in FIG. 1 in order to maintain a uniform and sufficient structural strength, the bottom structure 30 embedded in the bottom concrete 60 along the width direction at regular intervals therebetween. And, each of the plurality of anchor bolts 40 are buried in the river or river width direction at regular intervals, respectively.

In order to fix the rubber beam 10 in close contact with the lower bed structure 30, a clamping plate 20 made of a special casting is used as a steel (STEEL) material. The clamping plate 20 is fixed to both ends of the overlapping rubber beam 10 more tightly fixed to the lower bed structure 30, both wings for preventing leakage between the both ends of the rubber beam 10 and the lower bed structure (30). A reinforcing bar 20c for reinforcing the sections 20a and 20b and the two wing parts 20a and 20b is formed, and is embedded in the bed concrete 60 between the reinforcing bars 20c. Through holes are formed to allow the anchor bolts 40 to pass therethrough.

In the method of fixing the rubber beam 10 to the lower concrete 60, the both ends of the rubber beam 10 are overlapped and the clamping plate 20 made of steel is placed on the lower structural body 30 and the anchor is covered. The fixing is completed by tightening the nuts 50 to the bolts 40, and both the wing portions 20a and 20b of the clamping plate 20 have the amount of the rubber beam 10 with respect to the lower bed structure 30. By tightly adhering the ends, not only the airtightness in the rubber beam 10 is maintained but also the watertightness between the lower structure 30 and both ends of the rubber beam 10 is maintained.

In this way, when the rubber beam 10 is fixed to the river concrete 60 in the river or river by the clamping plate 20 in the width direction set the planned water level to inject air into the air pipe (rubber beam ( As shown in FIG. 1, as shown in FIG. 1, the water level is raised by the planned water level to secure a low amount of water, and when the fresh water is to be discharged, the rubber beam is discharged to the outside by discharging the air in the rubber beam 10 through the air pipe. 10 is slaughtered and fresh water is discharged.

However, as mentioned above, the rubber dam clamping plate is manufactured by using a special casting made of steel, and thus, the weight is heavy, which makes it difficult to handle and install, and because the precision of the casting is poor, it cannot be used as it is and is reworked. As a result, the cost of processing has been increased, especially since the clamping plate made of steel is immersed in the bottom of the water for a long time, and the steel is severely corroded by various high corrosion environments such as polluted household wastewater and factory wastewater. This is a significant drop, which poses a problem for structural safety, and carries the risk that the rubber beam will not be able to withstand the upstream water pressure and will be swept away with the water.

In addition, when replacing the corroded clamping plate has a problem that the replacement cost and maintenance cost during public performance is significantly increased.

In addition, the steel structure in a high corrosion environment, such as the water treatment structure of the river or river as described above has a corrosion resistance, so as a means for preventing corrosion, a separate anticorrosive construction, such as electrical, coating, coating, etc. Although a separate construction must be done, this also has another problem of increased material cost and work loss due to corrosion protection construction.

Accordingly, an object of the present invention is to be suitable for various high corrosion environments such as water treatment structures of rivers or rivers in the installation of rubber dams or movable beams, and to provide a fiber-reinforced composite clamping plate for rubber dams which ensures long-term structural safety and enhanced load resistance. This fiber reinforced composite clamping plate is achieved by constructing two or more different fiber reinforced composites to have light weight, corrosion resistance, high strength and high durability.

Another object of the present invention is to provide a fiber-reinforced composite material clamping plate for a rubber dam that does not require a separate anticorrosive construction, such as electrical, anticorrosive coating, coating for preventing corrosion of the steel according to various high corrosion environments.

Still another object of the present invention is to provide a fiber-reinforced composite clamping plate for rubber dams, which is convenient for transportation and construction and shortens air according to the light weight of the structure.

Other objects of the present invention will become more apparent from the following detailed description and the accompanying drawings.

According to the fiber-reinforced composite clamping plate for rubber dams according to the present invention for achieving the above objects, the both ends of the rubber beam is laminated on the bottom structure of the concrete and have a constant width and thickness thereon and based on the axis on the bottom Longitudinal compression projection symmetrically vertically downward, and on the rubber dam fixed by the anchor bolt and the nut by laminating the clamping plate formed in the longitudinal direction on both sides of the upper surface vertical reinforcement vertically symmetric with respect to the axis In;

The clamping plate is formed by laminating a plurality of fiber-reinforced composite materials, each of which is arranged and woven in a longitudinal direction, a transverse direction, and an inclined direction, to a predetermined thickness to be impregnated with a resin, and the composite material laminate plate impregnated with the resin. It is symmetrical to the clamping plate and passed through the molding die of the hollow cross-sectional shape is heat is characterized in that it was cut by size after rapid curing.

Optionally, the composite laminate constituting the clamping plate comprises a reinforcing fiber selected from any one of glass fiber, carbon fiber and aramid fiber, and polyester, vinyl ester, phenol, and epoxy impregnated in the reinforcing fiber. It is characterized by consisting of a resin.

According to the method of manufacturing a fiber-reinforced composite material clamping plate for rubber dams according to the present invention, the step of laminating the fiber-reinforced composite material supplied by being arranged and woven in different directions for each direction to a predetermined thickness; Impregnating the laminated composite laminate into a predetermined resin; Passing the composite laminate plated with the resin through a high temperature molding mold having a hollow cross-sectional shape symmetrical with the clamping plate to have a thickness and width of the clamping plate to be manufactured; Continuously pulling the composite laminate having passed through the molding mold to cure rapidly; And cutting the cured composite laminate according to specifications to produce the clamping plate.

Optionally, the fiber-reinforced composites are woven in an array in the directions of 0 °, 90 °, and ± 45 °, respectively.

In this way, the clamping plate used to fix the rubber dam or the movable beam in the direction of the river or the river width is laminated with two or more different fiber-reinforced composite materials having excellent properties such as light weight, corrosion resistance, high strength, and high durability. It can be seen that the high temperature molding mold is produced by continuous molding by a pultrusion (pultrusion) method.

As a result, the clamping plate made of fiber-reinforced composite material is suitable for various high corrosion environments such as steel or river water treatment structures, ensuring long-term structural safety and improving load resistance, and corrosion of steels due to various high corrosion environments. Not only does not require a separate anticorrosive construction, such as electrical method, anticorrosive coating, coating for prevention, there is an advantage that the convenience of transport and construction according to the light weight of the fiber-reinforced composite clamping plate is provided.

In addition, there may be a plurality of embodiments of the present invention. Hereinafter, the most preferred embodiments will be described in detail.

Through this preferred embodiment, the objects, other objects, features and advantages of the present invention will become more apparent from the following description with an embodiment according to the present invention in connection with the accompanying drawings shown for illustrative purposes.

Hereinafter, with reference to the accompanying drawings it will be described in detail a preferred embodiment of the fiber-damping fiber reinforced composite material clamping plate according to the present invention.

Figure 2 is a perspective view showing an upper portion of the fiber-reinforced composite material clamping plate for rubber dams according to the present invention, Figure 3 is a perspective view showing a lower portion of the fiber-reinforced composite material clamping plate for rubber dams of FIG.

The fiber-reinforced composite clamping plate 100 according to the present embodiment, the two ends of the rubber beam mounted on the riverbed structure of the riverbed concrete in the river or river width direction is in close contact with the riverbed structure and then fixed as anchor bolts and nuts to the rubber The fiber-reinforced composite clamping plate 100 of the present invention is used to maintain the airtightness in the beam, as shown in Figures 2 and 3, has a constant width and thickness and has a long side compression projection ( 111 and 112 are symmetrically formed vertically downward with respect to the axis, the through-hole 115 in the center so that the anchor bolt can be penetrated, and the vertical reinforcing piece 113, 114 in the upper surface is the axis It is manufactured by molding the composite laminate 110 having a dual channel cross-sectional shape formed in the longitudinal direction so as to be symmetric in the vertical upward direction.

In addition, the composite laminate 110 of the fiber-reinforced composite clamping plate 100 is composed of reinforcing fibers and resins such as glass fiber, carbon fiber, aramid fiber, etc. which are excellent in light weight, corrosion resistance, tensile strength, and high durability. Specifically, the composite laminate 110 is manufactured by arranging the reinforcing fibers in a laminated structure and then impregnating the resin. The resin constituting the composite laminate 110 of the fiber-reinforced composite clamping plate 100 according to the present invention has a corrosion resistance, chemical resistance properties, polyester, vinyl esters that increase the durability against external harmful environment , Phenol or epoxy and the like are used.

In the composite material used as the composite laminate 110 of the fiber-reinforced composite clamping plate 100, the direction of the reinforcing fibers may be arranged such as 0 °, 90 °, +45 °, -45 °, etc. , The direction of the reinforcing fibers and the amount of fibers in each direction are appropriately selected by designing for rigidity. In addition, as the reinforcing fiber, a multi-axial chopped strand mat in a warp direction (± 45 °), a roving yarn woven in the longitudinal direction (90 °), and a glass fiber woven in the transverse direction (0 °) It is manufactured using a woven fabric (longitudanal transverse fabric).

When the reinforcing fibers used in the composite laminate 110 according to the present invention are glass fibers, as a manufacturing method thereof, as shown in FIG. 5, the glass fiber woven fabric 130 and the roving yarn (fiber) are formed on the fiber mat 120. 140), the glass fiber woven fabric 130 is sequentially laminated, and the fiber mat 120 is laminated on the glass fiber woven fabric 130 again, wherein the fiber reinforced composite material clamping plate 100 has the desired thickness. The composite materials are sequentially stacked in one procedure. Thus laminated composite material laminate 110 is produced by impregnating the aforementioned resin.

As a method of manufacturing the fiber-reinforced composite clamping plate 100 shown in FIGS. 2 and 3 with the composite laminate 110 impregnated with the resin, a pultrusion method is used.

The drawing molding method is a method of continuously forming a member of a desired cross-section by pulling and pulling the composite laminate 110 impregnated in the resin through a molding mold to which heat is applied, and pulling out the fiber. High temperature that can be produced quickly because the composite composite clamping plate 100 can be produced at a low production price, and the composite laminate 110 impregnated in the resin to be described later will be cured rapidly while passing through the heated molding mold. Hardening method is used.

By using the above-described pull-forming method, a process of manufacturing the fiber-reinforced composite clamping plate 100 shown in Figures 2 and 3 will be described in detail as follows.

First, a high temperature molding mold having a hollow cross-sectional shape symmetrical with the clamping plate is prepared to have a thickness and a width of the fiber-reinforced composite clamping plate 100 to be manufactured.

Then, when the composite molding plate 110 impregnated with the resin is passed through the prepared molding mold, the composite materials of the composite laminate 110 are integrated by the resin melted by heat, that is, as shown in FIG. 4. Molding and discharging into a dual-channel cross-sectional shape symmetrical with respect to the axis, and with the discharge is rapidly cured at room temperature.

And it is produced continuously while pulling the composite laminate 110 molded and cured through the molding mold. Here, although the composite laminate 110 passing through the molding mold is configured in a dual channel cross-sectional shape, as shown in Figure 6 according to the molding mold, various shapes such as wing-shaped cross-sectional shape symmetrical with respect to the axis It may be composed of a composite laminate having a cross section.

Subsequently, by cutting the cured and molded composite laminate 110 according to the specifications through the molding mold and forming the through holes 115 to penetrate the anchor bolts through the cut composite laminate 110, Fiber-reinforced composite clamping plate 100 as shown in Figures 2 and 4 is completed.

In the fiber-reinforced composite clamping plate 100 manufactured as described above, the long side compression protrusions 111 and 112 stably adhere to both of the overlapped ends of the rubber beam by tightening the anchor bolt and the nut to the lower bed structure. By being fixed, air tightness in a rubber beam is maintained and watertightness between the lower structure and the both ends of a rubber beam is maintained.

On the other hand, in contrast to the conventional technique, that is to say that the clamping plate made of steel, that is, made of steel is severely corroded by the high corrosion environment of the river or river, the strength and endurance is significantly reduced, the present invention is fixed to the rubber beam It can be seen that the clamping plate used in the present invention is laminated with a fiber reinforced composite material having excellent light weight, corrosion resistance, high strength, and high durability, and is molded and manufactured in a high temperature molding mold by a pull molding method.

As a result, according to the present invention, the fiber reinforced composite clamping plate is suitable for various high corrosion environments such as river or river water treatment structures, ensuring long-term structural safety and improving load resistance, There is an advantage that convenience is provided.

In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that the present invention may be variously modified and implemented by those skilled in the art.

Such modified embodiments should not be individually understood from the technical spirit or the prospect of the present invention, and such modified embodiments should fall within the appended claims of the present invention.

According to the rubber clamp composite material clamping plate of the present invention apparent from the above description, it is made of a fiber-reinforced composite material which is excellent in light weight, corrosion resistance, high strength, and high durability characteristics, so that various high corrosion environments such as river and river water treatment structures, etc. It ensures long-term structural safety and improves load capacity, and does not require additional corrosion protection such as electrical method, coating, and coating to prevent corrosion of steel materials due to various high corrosion environments. According to the convenience of carrying and construction is provided.

Claims (7)

On both sides of the concrete, the rubber beams are stacked on both ends of the rubber beam, and have a constant width and thickness on them, and a long side squeezing protrusion symmetrically vertically downward on the bottom, and vertically upward on both sides of the top surface. In the rubber dam is fixed by the fastening of the anchor bolt and the nut by stacking the clamping plate formed in the longitudinal direction symmetrical vertical reinforcement; The clamping plate is formed by laminating each fiber-reinforced composite material having a predetermined thickness in the longitudinal direction, the transverse direction, and the inclined direction, and impregnating the resin with the resin, and then impregnating the composite material laminated plate. The fiber-reinforced composite clamping plate for the rubber dam, characterized in that the symmetrical to the clamping plate and the heat is applied to the molding die of the hollow cross-sectional shape is rapidly hardened and then cut by specifications. The method according to claim 1, The composite laminate constituting the clamping plate is composed of a reinforcing fiber selected from any one of glass fiber, carbon fiber and aramid fiber, and a resin made of any one of polyester, vinyl ester, phenol, and epoxy impregnated in the reinforcing fiber. Fiber reinforced composite material clamping plate for the rubber dam. The method according to claim 1, The composite laminate is a fiber-reinforced composite material clamping for rubber dams, characterized in that the fiber mat woven in a multi-axial woven in the oblique direction, a glass fiber woven fabric in the transverse direction and the woven yarn in the longitudinal direction is laminated in order plate. In the method of manufacturing a clamping plate of claim 1, (1) stacking the fiber-reinforced composite materials which are woven and supplied in different directions to each other in a predetermined thickness; (2) impregnating the laminated composite laminate to a predetermined resin; (3) molding the composite laminate laminated with the resin through a high temperature molding mold having a hollow cross-sectional shape symmetrical with the clamping plate to have a thickness and width of the clamping plate to be manufactured; (4) rapidly pulling the composite laminate through the molding mold to cure rapidly; And (5) The method of manufacturing a fiber-reinforced composite clamping plate for rubber dams, comprising the step of cutting the cured composite laminate sheet by specifications to produce the clamping plate. The method according to claim 4, The fiber-reinforced composite material manufacturing method of the fiber-reinforced composite material clamping plate for rubber dams, characterized in that weave arranged in the direction of 0 °, 90 °, ± 45 ° respectively. The method according to claim 4, The composite laminate is a rubber, characterized in that consisting of a resin made of any one of a glass fiber, carbon fiber, aramid fiber reinforced fiber, polyester, vinyl ester, phenol, epoxy impregnated in the reinforced fiber Method for manufacturing fiber reinforced composite clamping plate for dams. The method according to claim 6, The composite laminate is a fiber-reinforced composite material clamping for rubber dams, characterized in that the fiber mat woven in a multi-axial woven in the oblique direction, a glass fiber woven fabric in the transverse direction and a roving yarn woven in the longitudinal direction in turn Plate manufacturing method.

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